Table for making sounding-boards for pianos.



No. 764,117. PATENTED JULY 5, 1904.

v A. DOLGE. TABLE FOR MAKING SOUNDING BOARDS FOR PIANOS.

APPLIOATION FILED 001. 29, 1903. N0 MODEL.

8 U 8 f H Z 7 W E 1 Du m H N l WITNESSES W a flail X. ri

A TTOHNE) UNITED STATES Patented July 5, 1.904.

ALFRED DOLGE, ()F LOS ANGELES, CALIFORNIA.

TABLE FOR MAKING SOUNDENC-t-BOARDS, FOR PIANOS.

SPECIFICATION forming part of Letters Patent No. 764,117, dated July 5, 1904..

Application filed October 29,1903.

To all whom it my (NH'LOBTIL:

Be it known that 1.,ALF1mp Down, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles, State of (all i fornia, have invented and discovered anew and useful lmprovement in Tables for Making Sounding-Boards for Pianos; and 1 do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in-the art to which it appertains to make and use the same.

This invention relates to improvements in tables for making sounding-boards for pianos; and the object of my improvement is to construct tables on which sounding-boards are manufactured provided with adjustable and movable parts to force theends, sides, and surfaces of strips of lumber to be made into somuiing-boards for pianos and other musical instruments into parallel lines with each other before permanently securing thestrips together, reference being made to the accompanyingdrawings, to the figures and reference numerals, letters, and characters marked thereon; and the invention consists, essen-. tially, in the construction, combination, and arrangement of the several parts, as will be hereinafter more fully described in the specification, shown upon the drawings appended hereto, and specifically pointed out in the claims made a part hereof. I attain these objects by the construction illustrated upon the aeconnmnying drawings, in which Figure l is a plan view of my improved table and the several parts connected therewith in operative positions forming together strips of lumber forming a sounding-board resting upon the table. Fig. 2 is an end view of the table, a part thereof broken away; and Figs. 3 and 4 are views in detail of parts of my improvement.

Similar reference numerals, letters, and characters refer to like parts throughout the several views.

The letter A indicates the table and parts connected therewith, and B denotes the sounding-board in process of construction thereon, auldl (T represents the frame secured to the ta e.

The numerals 1 1 refer to the two legs of Berial'No- 179,074. (No model.)

the table A, which are connected by cross rails, only one of which is represented by the numeral 3 and is shown upon Fig. 2 of the drawings. The upper ends of the two legs of the table are connected by the longitudinal rails 4 4, (shown upon Fig. 2 of the drawings,) abutting against the ends of one of the crossrails 3, resting upon the upper ends of the legs 1 1, (also shown upon Fig. 2 of-the drawings, the legs of the table connected by the longitudinal braces, cross-braces, and diagonal.

braces, if desired, which, with thelongitudinal and cross rails, form the table A. The numeral2 refers to one of the cross-braces.

Resting upon the upper surface of the longitudinal and cross rails 4 and 3, respective] y, of the table 1 secure by well-known means, as bolts, screws, or equivalent devices, the rectangular frame 0, consisting of two side pieces 6 and 8 8 and two end pieces 10 and 12.

The side piece 60f the rectangular frame is securely fastened to the table by means of bolts 13 13 or equivalent devices throughout the entire length of the table,:.tl1e ends of the frame projecting a short distance over and beyond each end of the table. The side piece 8 8 of the said rectangular frame C is securely fastened in like manner as the piece 6 to the table by means of bolts 13 13 or equivalent devices for about two-thirds of the length thereof, as illustrated upon Fig. 1 of the drawings.

The portion 8 of the side piece8 (shown in full and dotted lines upon Fig. 1 of the drawings) isnot fastened to theframe or table, but is movable, having an edgewise elastic springing movement, and is adapted to be pressed toward the companion side piece 6 of the rectangular frame C by means of the clampingbar 17', secured between the pair of cross braces 15, which passes through the perforated stop 50. (Shown upon Fig. l of the drawings. Against this stop 50 the buffer or abutment 21 presses whenthe clamping-sore is revolved by the crank 25'. T In this wa, the projecting ends of the strips of lumbe forming the sou'nding-board-B out of parallel with the fixed side piece 6 of the frame (I are pressed in lines parallel therewith and are held in positions until the glue between the edges of the strips are. dried.

notches 1919 of the tiecured to the frame C at preferably arranged in pairs like the crossbraces '15, are the cross-braces 15 15L hese cross-braces are securely fastened to the frame C, as well as to the table A, by

each end thereof,

to. Between each pair of said cross-frame braces 15 and 15 15 I secure the clampingbars 17- and 17 17 provided at intervals with notches 18 18, in which the bridges 16 16 are seated, while the righ t-angled ends 23 23 thereof press against the cross-frame braces, as shown upon Figs. 1 and 4 of the drawings. clamping-bars 17 and 17 17 from being sprung upward while the strips of the sounding-board are being pressed together. clamping-bars l7 and 17 rear'end thereof a sliding 21"and 21 2l,*respectivel,v, to which is pivoted a pawl 24. (Illustrated upon Fig.2 of the 17 carries uponthe drawings) The free end ofthe pawl is adapt-- ed to be removably inserted into the end clamping-bars. The front faces of the rear buffers orabutments 21 and'21 2-1 are adapted to press against the rear edge of the longitudinal side piece 8 8 of the frame (I when the cranks 25 and 25 25 on the front ends of theclamping-screws'20 and 20 20 are turned. When these cranks revolve, theJclamping-screws press the rear faces of the front binders or abutments 21 and 21 21 against the front edge of the loose clamping -'strip 28.

sounding-board and thefront edge of the side piece 8 8 of the frame C.

The externally screwthreaded clampingscrews 20' and 20 20 carry upon the rear ends thereof the front lenders-or abutments 21 and 21 21, and these clampingscrews revolve when thecranks are turned in the internally-screwthreaded supports 30, secured on the front ends of the clampingabars 17' and 1-7 17 as illustrated-upon Fig. 2 of the drawings.

. Secured'to the rear side ofthe table and projecting above the same are the standards 3a 34:, and in the upper ends thereofl jou'rnalfthe pulleys 33 33. Over'th'ese pulleys the cords 35 35 travel. Each of these cords carries a weight '37 at oneend, and the opposite end is fastened to the hand-lever 38. One end of thesehand-levers ishinged at 39 to the standards. The opposite end of said levers isprovided with-a handle 10: The free ends ofthe levers 38 38 ar adapted to be fastened to notched retainerstl 41, secured to the front side of the table, as shown upon Figs. 1, 2, and 3 of the drawings. I preferably swivel, by means of the bolts 44. t4: or equivalent devices, to the under, side. of the levers 38 38 the board-pressers 42 4.2, as shown upon Figs. 1

' and 2 of, the drawings.

- it will readily appear from the foregoing description when read in connection with the under faces of the said These bridges prevent the Each of the buder or abutment I also insert the rear loose clamping-strip 29 between thev edge of the pieces,-one of said side ving adjustable drawings hereto appended andmade the specification and claims what is the operatlon of my invention, and further description of the manner of operating my improvement I is deemed pnnecessary.- means of bolts 13 13,-hereinbeforereferred It is ob'vious that to which it appertains and still be within the spirit and scope of-my invention. 1

a part of I do not desire to-confine this invention to a the specific construction, combination, and ar rangement' of parts herein shown and described, and the right is reservedto make all changes in and modifications of the sameas come within the I do desire to secureas my invention all fea: turesof construction and equivalents thereof thatcome within the scope of my improvement,as'herein shown and described,and illustrated upon the drawings appended hereto.

Having described-my invention, what I do claim, and desire to secure by Letters Patent, 1s I 1. A table for gluing pieces of lumber for sounding-boards for pianos and other musical instruments comprising a frame having crossbraces and provided with side p eces and end pieces, one of said side pieces secured to the cross-braces, the other side piece fastened to a portion of said cross'braces'having one end thereof free to move and means for pressing the said side pieces in parallel lines with each other.

2; A table for manufacturing soundingboards for pianos and other musical instruments comprising an equilateral frame provided with cross-braces, side pieces and end pieces secured to the ends of the cross-braces, the other side piece fastened to opposite ends of a portion of the cross braces and having one end thereof adapted to be sprung edgewise out of a straight line, with the remaining portion thereof.

3; A table comprising a rectangular frame having cross-braces. side and end pieces, one

ofsaid end pieces rigidly fastened to the cor responding ends of the side pieces, one of saidside pieces rigidly secured to the corresponding ends of the end pieces and one of said side pieces adaptedto slide'upon one end of one of said end pieces.

4:. A table comprising aframe havingcrossbraces arranged in pairs, clamping-bars carrybuders' or .abutments, said clamping-bars provided with notches 18, movable bridges provided with angled end's,clamping-screws carrying buflers or abutments whereby strips. of lumber for sound in' boards are pressed together.

5. A table comprising aframe. standards secured to the table having pulleys fastened thereon, hand-levers hinged to the standards, board-pressers swiveled to the levers, cords spirit of thisinvention; but

IIC

having Weights fastened to one end thereof and the opposite ends'secured to the levers, said cords adeptedto pass over the pulleys and means for removablv securing the handlevers to the table.

6. A table for making sounding-boards comprising a frame, clamping-bars carrying buffers, clamping-screws carrying buffers upon the ends thereof, supports for connecting the clznnping-bers and the clamping-screws,stand ards seemed to the table having pulleys secured thereto, levers hinged to the standards,

swiveled board-pressers secured to the levers, cords having weights thereon connected to the levers and passing over the pulleys and means for removablyfastening the levers to the table.

In testimony whereof l have signed my name to this specification in the presence of two subscribing Witnesses.

ALFRED DOLGE.

Witnesses:

ANNA MORGAN, 5:). A. LAVENDER; 

